137 lines
3.5 KiB
Python

from typing import Dict
import os
import shutil
from hexlib.db import Table, PersistentState
import pickle
from tesseract import get_tesseract_langs
import sqlite3
from config import LOG_FOLDER, logger
from sist2 import SearchBackendType, Sist2SearchBackend
RUNNING_FRONTENDS: Dict[str, int] = {}
TESSERACT_LANGS = get_tesseract_langs()
DB_SCHEMA_VERSION = "5"
from pydantic import BaseModel
def _serialize(item):
if isinstance(item, BaseModel):
return pickle.dumps(item)
if isinstance(item, bytes):
raise Exception("FIXME: bytes in PickleTable")
return item
def _deserialize(item):
if isinstance(item, bytes):
return pickle.loads(item)
return item
class PickleTable(Table):
def __getitem__(self, item):
row = super().__getitem__(item)
if row:
return dict((k, _deserialize(v)) for k, v in row.items())
return row
def __setitem__(self, key, value):
value = dict((k, _serialize(v)) for k, v in value.items())
super().__setitem__(key, value)
def __iter__(self):
for row in super().__iter__():
yield dict((k, _deserialize(v)) for k, v in row.items())
def sql(self, where_clause, *params):
for row in super().sql(where_clause, *params):
yield dict((k, _deserialize(v)) for k, v in row.items())
def get_log_files_to_remove(db: PersistentState, job_name: str, n: int):
if n < 0:
return []
counter = 0
to_remove = []
for row in db["task_done"].sql("WHERE has_logs=1 ORDER BY started DESC"):
if row["name"].endswith(f"[{job_name}]"):
counter += 1
if counter > n:
to_remove.append(row)
return to_remove
def delete_log_file(db: PersistentState, task_id: str):
db["task_done"][task_id] = {
"has_logs": 0
}
try:
os.remove(os.path.join(LOG_FOLDER, f"sist2-{task_id}.log"))
except:
pass
def migrate_v1_to_v2(db: PersistentState):
shutil.copy(db.dbfile, db.dbfile + "-before-migrate-v2.bak")
# Frontends
db._table_factory = PickleTable
frontends = [row["frontend"] for row in db["frontends"]]
del db["frontends"]
db._table_factory = Table
for frontend in frontends:
db["frontends"][frontend.name] = frontend
list(db["frontends"])
# Jobs
db._table_factory = PickleTable
jobs = [row["job"] for row in db["jobs"]]
del db["jobs"]
db._table_factory = Table
for job in jobs:
db["jobs"][job.name] = job
list(db["jobs"])
db["sist2_admin"]["info"] = {
"version": "2"
}
def create_default_search_backends(db: PersistentState):
es_backend = Sist2SearchBackend.create_default(name="elasticsearch",
backend_type=SearchBackendType("elasticsearch"))
db["search_backends"]["elasticsearch"] = es_backend
sqlite_backend = Sist2SearchBackend.create_default(name="sqlite", backend_type=SearchBackendType("sqlite"))
db["search_backends"]["sqlite"] = sqlite_backend
def migrate_v3_to_v4(db: PersistentState):
shutil.copy(db.dbfile, db.dbfile + "-before-migrate-v4.bak")
create_default_search_backends(db)
try:
conn = sqlite3.connect(db.dbfile)
conn.execute("ALTER TABLE task_done ADD COLUMN has_logs INTEGER DEFAULT 1")
conn.commit()
conn.close()
except Exception as e:
logger.exception(e)
db["sist2_admin"]["info"] = {
"version": "4"
}